A 69-year-old man presented with fever and fatigue lasting for two weeks. Chest CT revealed multiple consolidations in both lungs. Bronchoalveolar fluid contained 47.6% eosinocytes and he was diagnosed with chronic eosinophilic pneumonia. Prednisolone 0.5 mg/kg was administered and brought resolution. Prednisolone was tapered and discontinued after nine months; however, the symptoms relapsed one month after discontinuation. Chest CT revealed no active opacities in either lung field but right pleural effusion recurred. The effusion was exudative and dominated by eosinocytes (36%) and he was diagnosed with a relapse of chronic eosinophilic pneumonia. Prednisolone 0.5 mg/kg was re-administered and resulted in prompt improvement, and the effusion disappeared in 20 days. The presentation of eosinophilia with ipsilateral eosinophilic pleural effusion after recovery from chronic eosinophilic pneumonia is considered to be rare.